Resource Type
Counties
Language
2 Matching Results
Results open in a new window/tab.
Results:
1 - 2 of
2
Treadle-Spring.
Patent for an improved treadle spring to be used in treadles that are used in sewing machines, scroll-saws, and similar machines. It is simple, inexpensive, efficient, and requires less effort to operate the treadle. The spring does not move while in use.
Date:
March 6, 1894
Creator:
Frank, Gustav, Jr.
System:
The Portal to Texas History
Hand-Car.
Patent for improvements in hand-cars by “providing gearing operated by cranks, on the shaft of which are arranged triangular balance devices, the cranks being adjustable by means of set-screws of other analogous means, so that they may be made to operate the wheels in either direction desired.” (Lines 24-29) Illustration is included.
Date:
October 6, 1891
Creator:
Lo Casto, Tony
System:
The Portal to Texas History